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What are low slope roofs?

April 26, 2017low roofs slope

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What are low slope roofs?

2 Answers

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Roofs that have slopes of 4:12 or less are considered to be low slope roofs. (4:12 means a vertical rise of 4 inches for every 12 inch horizontal run, or 18.4°). Never apply asphalt shingles to slopes that are below 2:12 (9.5°). Shingles applied on low slope slopes do not last as long as shingles on steeper roof pitches, due to the increased exposure to sunlight and other weather conditions. Generally, laminated/architectural shingles are better suited to steep roofs, and do not offer aesthetic benefits when applied on low slopes.

0

Posted

Roofs that have slopes of 4:12 or less are considered to be low slope roofs. (4:12 means a vertical rise of 4 inches for every 12 inch horizontal run, or 18.4). Never apply asphalt shingles to slopes that are below 2:12 (9.5). Shingles applied on low slope slopes do not last as long as shingles on steeper roof pitches, due to the increased exposure to sunlight and other weather conditions. Generally, laminated/architectural shingles are better suited to steep roofs, and do not offer aesthetic benefits when applied on low slopes.